Pith Number

pith:M2LGCCKH

pith:2012:M2LGCCKH7I4O37SCD2L54Y34SG

not attested not anchored not stored refs pending

On Graph Refutation for Relational Inclusions

Brazil), Paulo A. S. Veloso (COPPE-UFRJ, Sheila R. M. Veloso (FEN-UERJ

arxiv:1203.6159 v1 · 2012-03-28 · cs.LO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M2LGCCKH7I4O37SCD2L54Y34SG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:59:04.000291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6696610947fa38edfe421e97de637c91864c170a78af330060db2fa77dd24f39

Aliases

arxiv: 1203.6159 · arxiv_version: 1203.6159v1 · doi: 10.48550/arxiv.1203.6159 · pith_short_12: M2LGCCKH7I4O · pith_short_16: M2LGCCKH7I4O37SC · pith_short_8: M2LGCCKH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/M2LGCCKH7I4O37SCD2L54Y34SG \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6696610947fa38edfe421e97de637c91864c170a78af330060db2fa77dd24f39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ad673946b0c6fc82e8216bbccec4239fcb5b7e6ce8074165b7eb8a8ed27449c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-03-28T05:06:25Z",
    "title_canon_sha256": "c4640ddd23fc7d8f3a6fd6904fc915fd94825542b945cdb226a94361a83d7e2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.6159",
    "kind": "arxiv",
    "version": 1
  }
}